I would imagine two, but you could have as many as you want.
ZERO pitch
You start with 11 players, you must have a minimum of 7 players on at the pitch or the match is ended by the referee.
You should always have 11 players. The law states that at least seven players (on one side) must be on the field for the game to on.
Wouldnt that depend on the diameter of the piping?=12" drainage requires less pitch then 4"=
Any team competing in an IFAB rules competition must comply with the Laws of the Game, which include pitch dimensions. Amateur leagues may be more lenient; it's a question of contacting the governing body for the competition in question.
There can only be 11 players on the pitch.
Four consecutive innings if she is the starting pitcher. There's no minimum number required for relief pitchers.
12
Yes
1x12 for metal or rolled roofing, 3x12 for shingles.
Art of speaking with proper stress ,intonation and pitch
There are a total of 11 players on the pitch at one time.